A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

resources: Set type in __request_region()

Browse source 
We don't set the type (I/O, memory, etc.) of resources added by
__request_region(), which leads to confusing messages like this:

    address space collision: [io  0x1000-0x107f] conflicts with ACPI CPU throttle [??? 0x00001010-0x00001015 flags 0x80000000]

Set the type of a new resource added by __request_region() (used by
request_region() and request_mem_region()) to the type of its parent.  This
makes the resource tree internally consistent and fixes messages like the
above, where the ACPI CPU throttle resource really is an I/O port region,
but request_region() didn't fill in the type, so %pR didn't know how to
print it.

Sample dmesg showing the issue at the link below.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=71611
Reported-by: Paul Bolle <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
This commit is contained in:
Bjorn Helgaas 2014-03-07 09:22:19 -07:00
commit 6404e88e83
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
kernel/resource.c
View file

@ -945,8 +945,8 @@ struct resource * __request_region(struct resource *parent,
res->name = name;
res->start = start;
res->end = start + n - 1;
res->flags = IORESOURCE_BUSY;
res->flags |= flags;
res->flags = resource_type(parent);
res->flags |= IORESOURCE_BUSY | flags;
write_lock(&resource_lock);